Ingredients  source allrecipe.com 1/2 cup margarine 1/2 cup peanut butter 1 cup white sugar 2 eggs 1/2 teaspoon vanilla extract 1 cup all-purpose flour 1 teaspoon baking powder 1/4 teaspoon salt   Directions Preheat oven to 350 degrees F (175 degrees C). In a medium bowl, cream together the margarine, peanut butter, and sugar. Beat […]